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Open Quantum Systems Decoherence
Capacity of a lossy photon channel with direct detection
arXiv
Authors: Karol Łukanowski, Marcin Jarzyna
Year
2020
Paper ID
18712
Status
Preprint
Abstract Read
~2 min
Abstract Words
92
Citations
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Abstract
We calculate numerically the capacity of a lossy photon channel assuming photon number resolving detection at the output. We consider scenarios of input Fock and coherent states ensembles and show that the latter always exhibits worse performance than the former. We obtain capacity of a discrete-time Poisson channel as a limiting behavior of the Fock states ensemble capacity. We show also that in the regime of a moderate number of photons and low losses the Fock states ensemble with direct detection is beneficial with respect to capacity limits achievable with quadrature detection.
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- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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- We calculate numerically the capacity of a lossy photon channel assuming photon number resolving detection at the output.
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